248030209 has 12 divisors (see below), whose sum is σ = 293258388. Its totient is φ = 209109600.

The previous prime is 248030207. The next prime is 248030219. The reversal of 248030209 is 902030842.

It can be written as a sum of positive squares in 2 ways, for example, as 36240400 + 211789809 = 6020^2 + 14553^2 .

It is not a de Polignac number, because 248030209 - 2¹ = 248030207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248030201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38502 + ... + 44479.

It is an arithmetic number, because the mean of its divisors is an integer number (24438199).

Almost surely, 2^248030209 is an apocalyptic number.

It is an amenable number.

248030209 is a deficient number, since it is larger than the sum of its proper divisors (45228179).

248030209 is an equidigital number, since it uses as much as digits as its factorization.

248030209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83056 (or 83049 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 248030209 is about 15748.9748555263. The cubic root of 248030209 is about 628.3016396490.

The spelling of 248030209 in words is "two hundred forty-eight million, thirty thousand, two hundred nine".